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May I respectfully ask why it is ok for Frontier to constantly have these "bugs" and it be ok? …
It's not OK that FD constantly makes mistakes and errors while setting up CGs. It's annoying and sometimes frustrating. That's why I'm glad that they, at least, fix those things most of the time the moment they realize their mistake or error.
I understand that it's annoying to try to work around these mistakes and problems and then notice that all the work was unnecessary, but at the same time I think errors made by FD isn't something players should have to work around.
I don't think that FD changed the tier requirements and in that case the mining CG would have been (probably) impossible to finish without limpets, no matter how much work, dedication and organization players would have poured into it. You probably thought it would have been possible.
We will never know - unless FD tells us.
It's similar to the "repair" CG. I bet if FD hadn't changed the tier requirements it would still be below tier 1.
The Jaques CGs are a complete mess and a wasted opportunity.